Bearing classification details

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Bearing classification details

Source: China Bearing Network Time: 2014-10-02

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Deep groove ball bearings are the most representative roll bearings; they are widely used. They can accept radial load and bidirectional axial load. Suitable for high speed rotation and low noise and low oscillation. With steel dust cover or rubber seal The sealed bearing is pre-filled with excess smooth grease; the outer ring has a bearing with a snap ring or flange; that is, the simple axial positioning; and the equipment inside the outer casing. The size of the maximum load bearing is the same as that of the standard bearing; There is a filling groove in the outer ring; the number of loading balls is increased; the additional load is applied. The first applicable frame, steel stamping and holding frame (waveform, crown shape...single row, S-shaped...double row)
2. The copper alloy or phenolic resin is cut into the frame, and the resin is formed into a frame.
Primary use:
Automobiles: Rear wheels, transmissions, electrical equipment components Electrical: General-purpose motors, household appliances Others: exterior, internal combustion engines, construction machinery, railway vehicles, loading and unloading transfer machinery, agricultural machinery, various industrial machinery angular touch ball bearing rings and balls There are touch angles; the standard touch angles are 15°, 30° and 40°; the larger the touch angle, the greater the axial load; the smaller the touch angle, the better the high-speed rotation. The single-row bearing can accept radial load and single Axial load; DB combination, DF combination and double row bearing can accept radial load and bidirectional axial load; DT combination is suitable for one-way axial load; occasional lack of additional load for single bearing. High speed ACH bearing The ball diameter is small and the number of balls is large; mostly used for machine tool spindles, angular touch ball bearings are suitable for high speed and high precision rotation; two single row angular touch ball bearings with reverse combination on the layout share inner and outer rings; Load and bidirectional axial load; non-filled groove bearings are also sealed.
The first applicable adherence frame: steel stamping and holding frame (bowl shape...single row, S-shaped, crown-shaped...double row), copper alloy or phenolic resin cutting and adhering frame, forming resin forming and holding frame.
Primary use:
Single row: machine tool spindle, high frequency motor, gas turbine, centrifugal separator, small car front wheel, differential pinion shaft.
Double row: oil pump, Roots blower, air compressor, various transmissions, fuel injection pumps, printing machinery.
Four-point ball bearings accept radial loads and bi-directional axial loads. Single bearings can replace angular combination ball bearings with front or reverse combinations. They are suitable for accepting component loads with pure axial load or axial load components; When the bearing of the class receives the axial load in any direction, it can form a touch angle (α) between them; therefore, the ferrule and the ball are always touched by the yin on any touch line.
The first applicable shelf: copper alloy cutting frame.
Primary use: aircraft jet engines, gas turbines.
Self-aligning ball bearing because the outer ring raceway surface is spherical; it has a self-aligning function; therefore, it can actively adjust the shaft center caused by the deflection of the shaft or the outer casing or the different core; the tapered hole bearing can be conveniently used by using fasteners. The equipment is on the shaft.
Steel plate stamping holder: daisy-shaped...12,13,22...2RS, 23...2RS, sunflower-shaped...22,23
Uses: woodworking machinery, textile machinery drive shaft, vertical belt bearing, cylindrical roller bearing, cylindrical roller and raceway are line touch; radial load can be large; that is, suitable for receiving heavy load and impact load; also suitable for High-speed rotation N-type and NU-type can be moved axially; can be used to change the relative orientation of the shaft and the casing due to thermal expansion or equipment error; most commonly used as a self-contained end bearing NJ type and NF type can accept a certain degree of one-way axial Load; NH type and NUP type can accept a certain degree of bidirectional axial load inner ring or outer ring can be separated; easy to install and disassemble NNU type and NN type anti-radial load rigidity; mostly used for machine tool spindle.
The first applicable adherence frame: steel stamping and holding frame (Z-shaped), copper alloy cutting and holding frame, pin-type holding frame, and resin forming forming frame.
Primary use: medium and large motors, generators, internal combustion engines, gas turbines, machine tool spindles, gear reduction equipment, loading and unloading transfer machinery, various industrial machinery.
The basic layout of the solid needle bearing has the same inner ring bearing as the NU type cylindrical roller bearing; but because of the selection of the needle roller; the volume can be reduced. 15. The sand 惺艽缶 惺艽缶 蚋 晌 晌 晌 谌χ岢 谌χ岢 鲜 鲜The group of tortoises smashed the hustle and bustle.
The first applicable adherence frame: steel plate stamping adheres to the frame.
Primary use: automotive engines, transmissions, pumps, excavator track wheels, hoists, bridge cranes, compressors.
Tapered Roller Bearings This type of bearing is equipped with a truncated roller; the roller is guided by the large rib of the inner ring. The poles of the conical surfaces of the inner ring raceway surface, the outer ring raceway surface and the roller tumbling plane are depicted. A point on the middle of the bearing.
Single row bearings can accept radial loads and one-way axial loads; double row bearings can accept radial loads and bidirectional axial loads.
Applicable to accept heavy load and impact load; according to the touch chest (α) is different; divided into small cone angle, middle cone angle and large cone angle three types; the larger the touch angle, the greater the axial load can be. It can be separated from the inner components (inner ring and roller and the bracket assembly); it is easy to assemble and disassemble; the bearing with the rear code "J" or "JR" has world interchangeability. This type of bearing also uses the British series.
The first applicable adherence frame: steel plate stamping and holding frame, composed of resin forming and holding frame, pin type holding frame.
The primary use: car: front wheel, rear wheel, transmission, differential pinion shaft. Machine tool spindle, construction machinery, large agricultural machinery, railway vehicle gear reduction equipment, rolling mill roll neck and deceleration equipment.
Spherical Roller Bearings This type of bearing is equipped with a spherical roller between the outer race of the spherical raceway and the inner race of the double raceway; it is different according to the internal layout; it is divided into four types: R, RH, RHA and SR; The middle of the arc of the track is common with the middle of the bearing; it has a self-aligning function; thus it can actively adjust the axial misalignment caused by the deflection of the shaft or the casing or the different core. Acceptable radial load and bidirectional axial load. Especially the diameter The load can be large; it is suitable for accepting heavy load and impact load. The tapered hole bearing can be assembled and disassembled on the shaft through the use of fasteners or withdrawal sleeves.
There are two types of tapered holes (taper):
1:30 (auxiliary code: K30) ... applies to the 240, 241 series.
1:12 (auxiliary code: K).........Applicable to other series.
Oil holes, oil grooves and positioning pin holes (one) can be set on the outer ring. Oil holes and oil grooves can also be opened on the inner ring.
The first applicable adherence frame: copper alloy cutting and holding frame, steel plate stamping and holding frame, pin type holding frame, and resin forming forming frame.
Primary use: paper machine, deceleration equipment, railway vehicle axle, rolling mill gear box seat, rolling mill roller table, crusher, oscillating screen, printing machinery, woodworking machinery, various industrial speed reducers, vertical belt aligning bearings .
The thrust ball bearing consists of a washer-shaped raceway with a raceway and a ball and a bracket assembly. The raceway ring that cooperates with the shaft is called a shaft ring; the raceway ring that cooperates with the outer casing is called a raceway. The two-way bearing is in the middle. Coupling shaft cooperation; one-way bearing can accept one-way axial load; two-way bearing can accept two-way axial load (both can not accept radial load).
The first applicable adherence frame: steel plate stamping frame, copper alloy or phenolic resin cutting frame, forming resin forming frame.
The primary use: car steering pin, machine tool spindle.
The thrust cylindrical roller bearing is composed of a washer-shaped raceway ring (shaft ring, race) and a cylindrical roller and a bracket assembly. The cylindrical roller is processed by convex surface; thus the pressure between the roller and the raceway surface is evenly distributed; Accepts one-way axial load; axial load can be large; axial rigidity is also strong.
The first applicable adherence frame: the main use of copper alloy cutting and sticking frame: oil drilling rig, steel making steel mechanical thrust needle roller bearing, separate bearing consists of raceway ring and needle roller and holding frame assembly; thin rolling with stamping processing The raceway (W) or the cut thickened raceway ring (WS) is a comfortable combination; the non-detachable bearing is a single-piece bearing consisting of a finely stamped raceway ring and a needle roller and a holder assembly. To the axial load. This type of bearing occupies space. Xin 诨 舸 舸 舸 舸 杓 杓 杓 蠖 蠖 蠖 蠖 蠖 蠖 蠖 蠖 蠖 蠖 蠖 蠖 蠖 牒捅 牒捅 牒捅 牒捅 牒捅 牒捅 牒捅 牒捅
The first applicable adherence frame: steel plate stamping adheres to the composition of the resin forming frame.
Primary use: variable speed equipment for cars, cultivators, machine tools, etc.
Thrust tapered roller bearing This type of bearing is equipped with a truncated cone roller (the large end is a spherical surface); the roller is precisely guided by the raceway ring (shaft ring, race) rib; the bearing is made to make the shaft ring and raceway raceway surface And the poles of the conical surfaces of the roller rolling surface intersect at a point on the middle line of the bearing. The one-way bearing can accept the one-way axial load; the two-way bearing can accept the two-way axial load. The two-way bearing cooperates with the shaft in the middle ring; Because the use of voids cooperation; therefore, the axial alignment of the middle ring must be used with the bushings, etc. The first applicable support frame: copper alloy cutting support frame.
Primary use: one-way: crane hook, oil rig swivel,
Two-way: rolling mill roll neck.
Thrust spherical roller bearing The spherical roller in this type of bearing is placed obliquely; because the raceway surface of the raceway is spherical; it has a self-aligning function; therefore, it can be allowed to have a number of skews; the axial load can be very large; The load together can also accept a number of radial loads; the oil is usually selected for smooth application.
The first applicable shelf: copper alloy cutting frame.
Primary use: hydroelectric generators, vertical motors, propeller shafts for ships, reducers for rolling mill rolling screws, tower cranes, coal mills, extruders, forming machines.
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